callback_sniffer.js

(function () {
    if (!window.grecaptcha) {
        console.log('Avoid wrapping before load grecaptcha');
        return;
    };
    if (window.grecaptcha.wrapped) {
        console.log('Avoid multiple wrapping of grecaptcha');
        return;
    };
    const x = grecaptcha.render;
    grecaptcha.render = function () {
        console.log('grecaptcha arguments', arguments);
        const cb = arguments[1].callback;
        if (arguments[1] && arguments[1].callback) {
            window.recaptchaCallback = window.recaptchaCallback || [];
            window.recaptchaCallback.push(arguments[1].callback);
            console.log('recaptchaCallback', window.recaptchaCallback);
        }
        return x(...arguments);
    };
    grecaptcha.wrapped = true;
})();

recaptcha_selenium_callback.py

import re
import time
import os
from os import environ
import gzip

from python_anticaptcha import AnticaptchaClient, NoCaptchaTaskProxylessTask

api_key = environ["KEY"]
site_key_pattern = "RECAPTCHA_PUBLIC_KEY = '(.+?)'"
url = "https://securitytrails.com/list/apex_domain/reddit.com"
DIR = os.path.dirname(os.path.abspath(__file__))
EXPECTED_RESULT = 'nnm.reddit.com'
client = AnticaptchaClient(api_key)

wrapper_code = open(os.path.join(DIR, 'callback_sniffer.js'), 'rb').read()

def get_token(url, site_key):
    task = NoCaptchaTaskProxylessTask(
        website_url=url, website_key=site_key
    )
    job = client.createTask(task)
    job.join(maximum_time=60 * 15)
    return job.get_solution_response()


def process(driver):
    driver.get(url)
    site_key = get_sitekey(driver)
    print("Found site-key", site_key)
    token = get_token(url, site_key)
    print("Found token", token)
    form_submit(driver, token)
    time.sleep(15)
    return driver.page_source

def form_submit(driver, token):
    driver.execute_script(
        "document.getElementById('g-recaptcha-response').innerHTML='{}';".format(token)
    )
    driver.execute_script("window.recaptchaCallback[0]('{}')".format(token))
    time.sleep(1)


def get_sitekey(driver):
    return re.search(site_key_pattern, driver.page_source).group(1)


if __name__ == "__main__":
    from seleniumwire import webdriver  # Import from seleniumwire

    def custom(req, req_body, res, res_body):
        if not req.path or not 'recaptcha' in req.path:
            return 
        if not res.headers.get('Content-Type', None) == 'text/javascript':
            return
        if res.headers['Content-Encoding'] == 'gzip':
            del res.headers['Content-Encoding']
            res_body = gzip.decompress(res_body)
        return res_body + wrapper_code

    driver = webdriver.Firefox(seleniumwire_options={
        'custom_response_handler': custom
    })

    try:
        assert EXPECTED_RESULT in process(driver)
    finally:
        driver.close()